US92755A - Improved ladder - Google Patents
Improved ladder Download PDFInfo
- Publication number
- US92755A US92755A US92755DA US92755A US 92755 A US92755 A US 92755A US 92755D A US92755D A US 92755DA US 92755 A US92755 A US 92755A
- Authority
- US
- United States
- Prior art keywords
- ladder
- ladders
- improved ladder
- bands
- bars
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000036633 rest Effects 0.000 description 4
- 230000001721 combination Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/39—Ladders having platforms; Ladders changeable into platforms
- E06C1/393—Ladders having platforms foldable with the ladder
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
Definitions
- the invention consists in a new, convenient, and effective combina-tion ofthe .several parts composingl this ladder. 1
Landscapes
- Ladders (AREA)
Description
dlnited States @aient dtiyw.
Leners Para: No. 92,755, dated .my 20,1869. l
IMRovED LADDER.
The Schedule referred to in these Letters Patent and making part of the snm:-
ToV all Iwhom lit may concern Be it known that I, Bnosson SGHOONMAKER, ofthe village of Plainwell, in the county of Allegau, and State of Michigan, have invented a ncwand useful Improvemcntiu Fruit, Step, and Long Ladders coinbined; and I do hereby declare that the following is a full, clear, and exact description ofthe construction and operation ofthe same, reference being had to the annexed drawings, making a part of this specification, in which- Figlu'e l is a perspective view.
Figure 2, a longitudinal elevation.
This device is' an improvement iu that class of ladders which may be used as step -ladders for house or other purposes, and are capable of ready extension, so as to make light, simple, and strong 'long ladders.
The invention consists in a new, convenient, and effective combina-tion ofthe .several parts composingl this ladder. 1
The following is a more particular description of theA construction and methodof operating this device.
A is a platform, of suitable size, in which there is an opening large enough for a step, which platform rests upon two cross-pieces, to the ends of which are pivoted 'two ladders B B, constructed in the usual manner, in one of which there should be steps, and in the other, rounds, or round bars.
Beneath the platform Aare two short standards C C, projecting downward, each secrued by its top at right angles with and to the centre of oneof said crossbars.
To the bottom of these standards C C, a doubleacting lever, l), is pivoted upon its centre.
To each end of this lever l), arms e e are pivot-ed, at one of their ends, by iron pins 7L It, which may be readily removed, and at their other ends are attached respectively to the upper step in the ladder, andthe upper round in the other ladder. p
F F are two brace-bars, each of which, when this device is used for a step-ladder, is held against the under side of the' side-piece of one of the ladders by v an iron band, g, which clasps it near its top end, and allows it to move freely. The bottom of each bracebar rests against a pin in said side-pieces, which prevents it from falling to the ground.
Similar iron bands g g are' fastened to the sidepieces of the other ladder in a similar position.
To use this device as a step-ladder', the two ladders are placed standing, with the platform in a horizontal position, and the arms e e are pinned to the lever d, which holds it securely.
To make a long ladder of it, it is only necessary to withdraw the pins h h, when the arms c c will hang loosely from the step and round to which they are severally attached, and then extend the ladders at the bottom until they are in a line with each other, when the brace-bars F F may be pushed along in the bands g g in one ladder, until they enter the bands g g in the other ladder.
These bars beingthus secured at each end by the bands g g, will brace the two ladders firmly, and make of them one long ladder.
Whar I claim as my invention, and desire to secure by Letters Patent, is-
The combination of the ladders B .13, provided with brace-bars F F and bands g y, withI the platform A, provided with standards C C, lever D, and arms c c, arranged and operating as above specified.
BRONSON SCHOONMAKER.
Witnesses J. C. ESTES, W. H. BURLING.
Publications (1)
Publication Number | Publication Date |
---|---|
US92755A true US92755A (en) | 1869-07-20 |
Family
ID=2162232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US92755D Expired - Lifetime US92755A (en) | Improved ladder |
Country Status (1)
Country | Link |
---|---|
US (1) | US92755A (en) |
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0
- US US92755D patent/US92755A/en not_active Expired - Lifetime
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